Home / 99,908.73-137,881.67-56,902.14

Finding the Fourth Proportional to 99,908.73, 137,881.67 and 56,902.14

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Solution

The fourth proportional to 99,908.73, 137,881.67 and 56,902.14 is: 78,529.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,908.73 : 137,881.67 = 56,902.14 : x
  2. Step 2: Convert to fraction form
    99,908.73/137,881.67 = 56,902.14/x
  3. Step 3: Cross multiply
    99,908.73x = 137,881.67 × 56,902.14
  4. Step 4: Simplify right side
    99,908.73x = 7,845,761,805.26
  5. Step 5: Solve for x
    x = 7,845,761,805.26/99,908.73
  6. Step 6: Final answer
    x = 78,529.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.